Box opener



F. DREYER.

BOX OPENER.

APPLICATION man APRj. |920.

' 1,409,367, vPatented Mar. 14, 1922.

scribed and claimed.

uN-irsnfrgSTA TiESf PATENT @tritata FREDERICK nnnrnit'or cHicAGo,ILLrNois, Assienon orv cnn-HALF; morena. Dosen,

V -1 orV cnicasdiznmors. l

B0X orniinn.

To all fui/wm t may concern: A

Beit 1snown that I, FREDERICK Drinnen, a citizen of the United States,and a residentof the city of Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in BoxOpeners, of which the following is a specification.

My invention relates to improvementsin box openers especially adaptedfor use on blaclring boxes, and has for its object the provision of animproved device of this character which is of simple construction andei'iicient in use. 1

@ther objects will appear hereinafter. The invention consists in thecombinations and arrangements of parts hereinafter de- The inventionwillbe best understood by the accompanying drawings forming a part ofthis specification, and inwhich,

. Fig. 1, is aside view ofra boxv equipped with an opener embodying theinvention, l j Fig. 2, a top planview of the same,

Fig. 3, a partial side view of the box show-k body 5, removable lid 6,and stop bead 7,V

the vsame constituting` the ordinary forin of box for containingblaclring or the like. A supporting lip'8 is formed at or secured to oneside of the lid 6 adjacent the bead 7 and a cam lever 9 is pivot-allymounted on the under side of the lip 8 by means of a rivet 10 forming apivot axis extending substantially parallel to the adjacent side of theboX. rlhe cam lever 9 is in channel form, as shown, one portion of saidchannel being notched or cut away and formed into a cam surface lladapted to rub against the stop bead 7 of the box when said lever isturned.

The arrangement is such that when the lever 9 is thrown outwardly fromthe posi.- tion indicated in Fig. 2, to the position indicated in Fig.v4:, the cam surface l1, rubbing against the stop bead 7 forces the lid 6upwardly to permit of ready removal thereof. By this arrangement, thelever 9 is held in accurate and constant contact with the bead 7 duringoperation, and there is no way in which said lever can slip or springspecification of Leitersratent. Patented Man 14, '1922, Application sledApril 5, l

1920. semi no. 371,333.

over said bead without forcing they lid ups.V

wardly. The action attained is Vpositive and effective for the purpose,and powerful leverage is exerted by the cam action to effect the removalof the lid.

While I have illustrated and described the' preferred form ofconstruction for carrying my invention into effect, this is capable ofvariation and modification without departl ing from the spirit of theinvention. I, therefore, do not wish to be limited to the precisedetails of construction set forth, but desire to avail myself of suchvariations and modifications as come within the scope of the ap endedclaims.

aving described my invention, what 'I claim as new and desire to securebyrLetters Patent is Y 1.,In combination with a receptacle having a lid;a bearing member mounted adj a` cent said'lid; a horizontally swinginglever mounted onsaid lid and an inclined surface on said vlever adaptedto ride onV said bearingl *i i member to force the lidv from saidreceptacle when the lever is operated. Y

2. In combination with-a receptacle having a lid; a bearing membermounted adjacent said lid; a horizontally swinging lever` on said lid;and a cam surface on'said lever soV j having a gentle initially engagingsteeply l' increasing curvature adapted to ride on said bearingmemberand force the lid from said receptacle when the lever is operated.

3. In combination Vwith a receptacle have.

ing a bead and a lidengagingsaid beadia lever mounted on said lid andswingingin'a horizontal plane; and a cam surface on said lever having agentle initially engaging steeply increasing curvature adapted to rideon said bead and force the lid from said receptacle when the lever isoperated.

et. In combination with Ia receptaclehaving a bead and a lidengagingsaidbead, an

opener comprising a lip attached to said lid l and projecting laterallytherefrom; a lever` i pivoted on said lip and adapted to swing in ahorizontal plane; and a cam surface on said lever adapted to ride onsaid bead to force the lid from the receptacle when the lever isoperated, substantially fas described.

l5. In combination with a receptacle hav-r ing a bead and a lid engagingsaid bead, an opener 'comprising a lip attached to said lid andprojecting horizontally therefrom; a

lever pvoted on said lip to Swingin a horizontal plane and when 1nlnoperatlve pos1-V tion engaging the side of said receptacle;

'and a cam surface on said. lever adapted to ride on Said bead and forcethe lid iromfsaid receptacle when the lever is swung outwardly,substantially as described.

